A five year-old legal battle between Viacom and Google-owned YouTube over copyrighted content continues to clog up the U.S. court system because Viacom, parent company of Paramount Pictures and MTV, believes there’s an important principle at stake, president and CEO Philippe Dauman said Tuesday.

Streaming video site Hulu is on the cusp of airing its first original series. Original programming will be an important part of the company’s agenda in the future, CEO Jason Kilar said at the D: Dive Into Media event in Dana Point, Calif. Tuesday.

If Twitter is to become a dominant web company and live up to the accidental potential its original founders never intended, it will do so under the leadership of its well-spoken, quick-witted and confident CEO Dick Costolo.